Jim Carroll said he never will forget the last play he made on the football field. It’s not hard to believe him.

The St. Anthony’s senior tackled Jason Holt, Mt. St. Michael’s scrambling quarterback, on fourth down to seal the Friars’ 21-20 win in the CHSFL AAA championship game, the team’s sixth in a row, in front of a crowd of 2,700 yesterday at Fordham University.

“I had been chasing receivers around the whole game and I wanted to do something,” said Carroll. “I saw him running around and was able to get him. It was a great way to end my career.” Carroll is on his way to Colgate to play lacrosse, but he made his final football game count. In addition to making the tackle on Holt, Carroll blocked an extra point that would have tied the game at 21 with 5:41 to go after Mount’s dynamic senior Mike Petrellese returned a kickoff 93 yards for a touchdown.

“I was on the end and just dove,” Carroll said. “I don’t even know what happened.” Doesn’t matter. What does is that the top-seeded Friars finished the season in perfect fashion (11-0), despite being hurt throughout the season by injuries.

“I didn’t expect this one,” said St. Anthony’s coach Rich Reichert, who got two touchdowns from John Gagliano. “I didn’t think we had enough in the tank.” With players like QB James Brady, it’s not. The junior passed for a career-high 276 passing yards, and it nearly wasn’t enough. After secondseeded Mount (8-3) took over on downs with 1:35 left in the fourth quarter from its own 24, Petrellese nearly scored again. He was just one block shy of breaking a screen pass for a near-certain touchdown.

“Any time the ball is in his hands, you think you have a chance,” Mount coach Mario Valentini said.

“I thought I had it,” said the diminutive but unbelievably quick Petrellese, who had 130 yards on just nine carries.

So did Reichert. “He was gone,” the coach said.

But Carroll was able to get in his way.

Xaverian 49, Fordham Prep 27

Xaverian didn’t have a football team before Dom Laurendi started one a dozen years ago. He’s never had a player like Xavier Martin and before yesterday, the Brooklyn school never had a championship.

“It’s very rewarding,” Laurendi said after Xaverian beat Fordham Prep to capture the CHSFL AA title at Fordham.

“We don’t have our own field.We practice in a park, but the kids didn’t let that stop them.” In particular, seniors Martin and QB Chris Calabrese led the Clippers, scoring three touchdowns apiece, as Xaverian avenged an earlier 39-36 loss to Fordham Prep.

“It’s been a long time,” said Martin, who finished with 115 yards and helped contain Prep’s vaunted passing attack at cornerback. “We’ve always had a losing record and people said before the year that we had no shot, but when we almost beat Fordham Prep, we almost beat them, it gave us a lot of confidence.”